Rehabilitation & Upgrade of Potable Water Treatment Plant.
The town Adama is capital of the Ethiopian region of Oromia. Located inside the Rift Valley, the town is growing fast due to location at the railway and motorway connecting Addis Ababa with the harbour Djibouti. Drinking water for half million inhabitants is taken from the 15 km away river Awash, by treatment plant and pumped to the town. Now the plant needed upgrade to match the expanding population. In year 2014 MENA-Water won the contract to rehabilitate and upgrade the complete plant.
This comprised the intake, new pre-treatment, clarifier, sand filter and new storage tank with high pressure pump station. Finally the system upgrade from 24 480 to 47 000 m³/day was done during operating the plant. As longest shut down time 24 hours were allowed, this requested very accurate planning of all extension works.
In 2017, the official inauguration of the extended facility took place.
The following steps were proceeded during the upgrade works:
Upgrade Raw Water Intake
- Replacement of Pumping Equipment
- Replacement of existing piping and fittings
- New Water Stop logs and trash screens
- New Shed Works
- Civil refurbishment
New Pretreatment Tank
- New sludge scraper
- New vertical mixers and chemical dosing
- New mechanical screen
- Sludge removal system
- Aeration system
Refurbishment Sand Filters
- New concrete structure and civil refurbishment
- Gravel and sand media replacement
- Filter nozzles replacement
- New backwash and discharge automation system (with pumps/blowers/pneumatic valves)
New Clean Water Pumping Station
- New pumping equipment
- Construction of new storage tank V=1000 m³
- New piping and fittings
- Overhead crane
- New surge vessel
- integrated fully automated control and monitoring system with easy interface for local operators and high level of reliability
Field and Mobile Laboratory
- laboratory car for mobile quality control